NativeModMenu

A custom reimplementation of the LGL Android Mod Menu that loads the Java UI entirely from memory using InMemoryDexClassLoader, without shipping a separate .dex file on disk.

This version embeds a prebuilt FloatingModMenu.dex as a HEX string and dynamically loads it at runtime via JNI.

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✨ Key Differences from Original LGL Mod Menu

• No external dex file
  • The menu dex is embedded as HEX and loaded directly from memory.
• In-memory class loading
  • Uses dalvik.system.InMemoryDexClassLoader
• JNI-driven bootstrap
  • Menu initialization is triggered fully from native code
• Cleaner injection surface
  • No file writes, no asset extraction
• Compatible with existing LGL menu Java code

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🧠 How It Works (High-Level)

1. Dex embedding
   • FloatingModMenu.dex is converted to a HEX string and stored in native code.
2. HEX → ByteBuffer
   • HEX string is converted back into bytes at runtime.
3. InMemoryDexClassLoader
   • Dex is loaded directly from memory.
4. JNI native bindings
   • Native functions are registered to the Java menu class.
5. Menu startup
   • Calls FloatingModMenu.antik(Context) to launch the floating menu.

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📂 Important Components

Embedded Dex

static std::string DI = "HEX_CODE_OF_DEX";

• This must be the HEX-encoded version of FloatingModMenu.dex.

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JNI Native Interface

Registered native methods:

Method	Description
Icon()	Menu icon
IconWebViewData()	WebView icon data
getFeatureList()	Feature list
settingsList()	Settings list
Changes(...)	Feature toggle handler
setTitleText(TextView)	Title customization
setHeadingText(TextView)	Heading customization

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Dex Loading Logic

Uses:

InMemoryDexClassLoader(ByteBuffer[] dex, ClassLoader parent)

Loads:

uk.lgl.modmenu.FloatingModMenu

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🚀 Entry Point

void binJava();

• Called after JNI_OnLoad
• Retrieves Application context via ActivityThread
• Starts menu initialization

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🔧 Requirements

• Android 8.0+ (API 26+)
• ARMv7 / ARM64
• JNI-based injection environment
• Prebuilt compatible FloatingModMenu.dex

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⚠️ Notes

• This project modifies runtime behavior of apps.
• Usage may violate application Terms of Service.
• Intended for educational and research purposes.

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📜 Credits

• Original concept: LGL Android Mod Menu
• Project Creation: Aniket
• In-memory dex loader: NepMods